Hong Kong people have been flocking to the Tai Po seashore to marvel at fluorescent blue patches of water.
The glow is a sign of a potential harmful algal bloom, more commonly known as Sea Sparkle, a by-product of marine pollution, Apple Daily reported Monday.
Dozens of people have been gathering in certain vantage points for the best views such as Sam Mun Tsai, upsetting local residents who complain about noise and sleepless nights.
“Firstly, there is noise pollution,” said photographer Francis So, who has been taking pictures of the phenomenon.
“Sometimes they throw rocks into the water to stimulate the glow. Some end up hitting villagers’ boats.”
Some Sam Mun Tsai residents have blocked access to the beach.
A snack store owner, surnamed Lee, said he used to let people pass through a narrow trail in front of his shop but stopped when he learned about the visitors’ behavior.
Village representative Shek Kwong-yin said the influx of curiosity seekers, especially around midnight, has been disturbing villagers’ sleep.
Meanwhile, Lung Mei beach in Tai Mei Tuk district is attracting hordes of algae watchers.
Marine ecologist Law Him-yan said there has been a big increase in the number of visitors to the neighborhood.
Law said people should respect the natural environment.
“You could tap the water gently with a branch to make the algae glow,” he said. “However, we strongly discourage throwing rocks or any chemicals into the water.”
While the algae don’t release any toxins into the water, they could deprive other marine creatures of oxygen.
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